And the state of Shangdang County, since ancient times there is a saying that "the earth is extremely high, and the sky is the party, so it is called the party".

It is said that Shangdang County was originally established in the early Warring States period after the Han, Zhao, and Wei families were divided into Jin, and the three Shangdang were established, and the ownership rights often changed between these three families.

However, with the unification of the world, by the time of the Han Dynasty, Shangdang County was relatively located in the inner hinterland of the Han Dynasty, so the strategic significance of this side was reduced a lot.

With Yuan Shao taking control of the state and sending his nephew Gao Gan to serve as the assassin of the state, although Gao Gan led troops into the state to show control, he did not have many troops to control the counties of the state.

Not to mention the states and counties occupied by the Southern Xiongnu, just Taiyuan County, the senior cadres also had to guard against the invasion of the Montenegrin army and other rogues.

Therefore, Gao Gan only has the strength to occupy Taiyuan County, and uses Jinyang City in Taiyuan County as his garrison, but he does not have the strength to divide troops to garrison Shangdang County.

As a result, just as Zhu Weijun began to investigate the intelligence of Shangdang County, Shangdang County was very empty, and the local forces surrendered to Zhu Weijun's attack with almost no resistance.

After Zhu Weijun sent troops to Shangdang County, he did not wait for Wei Yan's Jingnan Battalion and Zhang Xiu's Huyi Battalion heavy cavalry to follow, but Zhang Liao, Ma Chao and other generals appeared in various counties and townships of Shangdang County with the light cavalry of the Huyi Battalion, and the local forces occupying the county town opened their doors one after another, and there was no intention of resisting at all.

So by the time Zhu Weijun's order arrived, the entire Shangdang County was already under the control of Zhu Weijun.

Subsequently, according to Zhu Wei's military order, Zhang Liao, Ma Chao and other generals once again led the light cavalry of the Tiger Wing Battalion to Taiyuan County to kill the past, while Wei Yan's Jingnan Battalion divided a part of the troops to garrison in Shangdang County before following to Taiyuan County.

As for Zhang Xiu, Pang De, and Chen Qun with the heavy cavalry of the Tiger Wing Battalion, they also turned back to Hedong County in Guanzhong to set up defenses according to the order, so as to prevent the Southern Huns from breaking into Guanzhong from this side.

Not to mention how the heavy cavalry of the Tiger Wing Battalion on Zhang Xiu's side arrived in Hedong County, although the Southern Huns were preparing to attack Guanzhong under the instigation of Yuan Shao, it would take some time for the Huns to mobilize their troops, which was enough for Zhang Xiu and Ma Teng to converge in Hedong to block the invasion of the Huns.

It is only said that Zhang Liao took Ma Chao, Cao Xing, and Sun Ben, and led nearly 10,000 light cavalry of the Tiger Wing Battalion to let go of the horse speed again, and rushed to the territory of Taiyuan County first, but occupied Qi County of Taiyuan County before Gao Gan sent troops from Taiyuan County, thus blocking Gao Gan in Taiyuan County.

Jinyang City, Taiyuan County, where Gao Gan is located, is located in the basin valley plain between the Taihang Mountains and the Luliang Mountains, and further north is the mountain system composed of the Yanshan Mountains and the Yinshan Mountains.

However, it is also the terrain of the basin valley plain, which is almost surrounded by mountains, that makes the area where Jinyang City is located the most suitable place for the population to settle in Bingzhou, where the Fen River runs through it, bringing sufficient water sources, and the basin valley plain also makes the land here very fertile, enough for the people to cultivate fields and reproduce here.

It can be said that Jinyang City is somewhat similar to Chengdu City in Yizhou, which is a natural blessed land surrounded by mountains.

Therefore, during the Spring and Autumn Period of the Jin Kingdom, Zhao Jianzi, the head of the Zhao family, ordered his retainers Dong Anyu and Yin Duo to preside over the construction of a Jinyang City in three years, and later became the old capital of the Zhao State during the Spring and Autumn Period and the Warring States Period.

Although Zhao later moved its capital to Handan, the ancient city of Jinyang is still the largest city in the land of Bingzhou, and it is also the most populous city in Bingzhou.

Even in the later Li Tang Dynasty, Li Yuan and Li Shimin also relied on the foundation of Jinyang to rebel, thus laying down a prosperous Tang Dynasty.

This is also the reason why after Gao Gan arrived in Bingzhou, he also took Jinyang City as the place of governance of his state, because in the current years of warlord chaos and foreign invasion, only Jinyang City in Taiyuan County still has a relatively large population in Bingzhou, which can support his army.

As for the other states and counties, there are not many people left in the troubled times.

But now Zhang Liao took the light cavalry of the Tiger Wing Battalion directly to Taiyuan County, and the Qi County that he attacked first happened to be the south entrance of the Taiyuan Basin Valley Plain, and it was also the main official road convergence of Jinyang City to the south.

The southeast area of this Qi County is the hilly area of the Taihang Mountains, the northwest is the Taiyuan Basin Valley Plain, and the northwest is a Jinze Lake that covers an area of more than 20 miles.

It can be said that Zhang Liao's occupation of Qi County is equivalent to blocking a main road for Gao Gan to go from Jinyang City to Sili Guanzhong, and directly blocking Gao Gan in the Taiyuan Basin Valley.

Gao Gan obviously didn't expect Zhu Weijun to take the initiative to kill Taiyuan County, he had received Yuan Shao's military order, although he had already begun to mobilize the army to prepare for the dispatch of troops, but he still needed some time to make arrangements for Taiyuan County to stay behind.

After all, there is still a threat from the Montenegrin Army on the side of Taiyuan County, although Zhang Yan of the Montenegrin Army has been somewhat disabled now, but if the senior cadres do not deploy troops to garrison on the side of Taiyuan County, it just gives the Montenegrin Army the opportunity to capture the rich Jinyang City.

Besides, Gao Gan still had to wait for the response of the Southern Xiongnu Shan Yu Luan to mention the kitchen spring, so he also delayed in Jinyang City for a while, but because of such a delay, he found that he was actually invaded by Zhu Weijun first.

Of course, although Gao Gan was originally in Jinyang City and was going to send 10,000 troops to Guanzhong, he actually had more than 20,000 troops on Jinyang City's side.

Now that Gao Gan found that Zhu Weijun's cavalry appeared in Taiyuan County, he didn't pay much attention to it at first, so he simply led the originally mobilized 10,000 troops to Qi County to meet Zhu Weijun's light cavalry troops.

Soon, the Gao Ganjun and the Huyi Battalion light cavalry led by Zhang Liao confronted each other on the northwest plain in Qi County.

The army under Gao Gan had about 2,000 cavalry and 8,000 infantry, and in the face of the light cavalry of the Tiger Wing Battalion led by Zhang Liao, a cone formation of cavalry on both flanks and infantry in the center was formed.

This is a battle formation with a forward cone-shaped formation.

The cone formation must be sharp and fast, the two wings are strong and powerful, and the elite striker can attack the enemy in a narrow frontal position, break through and cut the enemy's formation, and then expand the results with the two wings that rush up.

It can be seen that Gao Gan is still very confident in the combat effectiveness of his army, and he tried to directly defeat the light cavalry army of Zhu Wei's army in a battle.

And Zhang Liao left Sun Ben with more than 2,000 cavalry to garrison Qi County, and he took Ma Chao, Cao Xing and six or seven thousand light cavalry to meet Gao Gan.

Then the two sides didn't talk nonsense, and launched an offensive war against each other......